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/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSweepGradient_DEFINED
#define SkSweepGradient_DEFINED
#include "SkGradientShaderPriv.h"
class SkSweepGradient : public SkGradientShaderBase {
public:
SkSweepGradient(SkScalar cx, SkScalar cy, const SkColor colors[],
const SkScalar pos[], int count, SkUnitMapper* mapper);
virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE;
virtual void shadeSpan16(int x, int y, uint16_t dstC[], int count) SK_OVERRIDE;
virtual BitmapType asABitmap(SkBitmap* bitmap,
SkMatrix* matrix,
TileMode* xy) const SK_OVERRIDE;
virtual GradientType asAGradient(GradientInfo* info) const SK_OVERRIDE;
virtual GrCustomStage* asNewCustomStage(GrContext* context,
GrSamplerState* sampler) const SK_OVERRIDE;
SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkSweepGradient)
protected:
SkSweepGradient(SkFlattenableReadBuffer& buffer);
virtual void flatten(SkFlattenableWriteBuffer& buffer) const SK_OVERRIDE;
private:
typedef SkGradientShaderBase INHERITED;
const SkPoint fCenter;
};
///////////////////////////////////////////////////////////////////////////////
class GrGLSweepGradient;
class GrSweepGradient : public GrGradientEffect {
public:
GrSweepGradient(GrTexture* texture);
GrSweepGradient(GrContext* ctx, const SkSweepGradient& shader,
GrSamplerState* sampler);
virtual ~GrSweepGradient();
static const char* Name() { return "Sweep Gradient"; }
virtual const GrProgramStageFactory& getFactory() const SK_OVERRIDE;
typedef GrGLSweepGradient GLProgramStage;
protected:
typedef GrGradientEffect INHERITED;
};
#endif
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